import java.io.*;
import java.util.*;
import java.util.stream.*;

public class Main {
	private static BufferedReader br = null;
	
	public static void main(String[] args) {
		String[] strs = read(1)[0].split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int n = Integer.parseInt(strs[2]);

		System.out.println((n / a) * b);
	}
	
	private static String[] read(int len) {
		List<String> strList = new ArrayList<>();
		
		try {
			if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			}
			
			for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			}
		} catch (IOException e) {
		}
		
		return strList.toArray(new String[0]);
	}
	
	private static void close() {
		try {
			if (br != null) {
				br.close();
			}
		} catch (IOException e) {
		}
	}
} import java.io.*; io.* java import java.util.*; util.* java import java.util.stream.*; stream.* java.util public class Main {
	private static BufferedReader br = null;
	
	public static void main(String[] args) {
		String[] strs = read(1)[0].split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int n = Integer.parseInt(strs[2]);

		System.out.println((n / a) * b);
	}
	
	private static String[] read(int len) {
		List<String> strList = new ArrayList<>();
		
		try {
			if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			}
			
			for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			}
		} catch (IOException e) {
		}
		
		return strList.toArray(new String[0]);
	}
	
	private static void close() {
		try {
			if (br != null) {
				br.close();
			}
		} catch (IOException e) {
		}
	}
} Main private static BufferedReader br = null; br null public static void main(String[] args) {
		String[] strs = read(1)[0].split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int n = Integer.parseInt(strs[2]);

		System.out.println((n / a) * b);
	} main {
		String[] strs = read(1)[0].split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int n = Integer.parseInt(strs[2]);

		System.out.println((n / a) * b);
	} String[] strs = read(1)[0].split(" "); strs read(1)[0].split(" ") read(1)[0].split read(1)[0] read(1) read 1 0 " " int a = Integer.parseInt(strs[0]); a Integer.parseInt(strs[0]) Integer.parseInt Integer strs[0] strs 0 int b = Integer.parseInt(strs[1]); b Integer.parseInt(strs[1]) Integer.parseInt Integer strs[1] strs 1 int n = Integer.parseInt(strs[2]); n Integer.parseInt(strs[2]) Integer.parseInt Integer strs[2] strs 2 System.out.println((n / a) * b) System.out.println System.out System System.out (n / a) * b (n / a) n a b String[] args args private static String[] read(int len) {
		List<String> strList = new ArrayList<>();
		
		try {
			if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			}
			
			for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			}
		} catch (IOException e) {
		}
		
		return strList.toArray(new String[0]);
	} read {
		List<String> strList = new ArrayList<>();
		
		try {
			if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			}
			
			for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			}
		} catch (IOException e) {
		}
		
		return strList.toArray(new String[0]);
	} List<String> strList = new ArrayList<>(); strList new ArrayList<>() try {
			if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			}
			
			for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			}
		} catch (IOException e) {
		} catch (IOException e) {
		} IOException e {
		} {
			if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			}
			
			for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			}
		} if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			} br == null br null {
				br = new BufferedReader(new InputStreamReader(System.in));
			} br = new BufferedReader(new InputStreamReader(System.in)) br new BufferedReader(new InputStreamReader(System.in)) for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			} int i = 0; int i = 0; i 0 i < len i len i++ i++ i {
				strList.add(br.readLine());
			} {
				strList.add(br.readLine());
			} strList.add(br.readLine()) strList.add strList br.readLine() br.readLine br return strList.toArray(new String[0]); strList.toArray(new String[0]) strList.toArray strList new String[0] 0 int len len private static void close() {
		try {
			if (br != null) {
				br.close();
			}
		} catch (IOException e) {
		}
	} close {
		try {
			if (br != null) {
				br.close();
			}
		} catch (IOException e) {
		}
	} try {
			if (br != null) {
				br.close();
			}
		} catch (IOException e) {
		} catch (IOException e) {
		} IOException e {
		} {
			if (br != null) {
				br.close();
			}
		} if (br != null) {
				br.close();
			} br != null br null {
				br.close();
			} br.close() br.close br public class Main {
	private static BufferedReader br = null;
	
	public static void main(String[] args) {
		String[] strs = read(1)[0].split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int n = Integer.parseInt(strs[2]);

		System.out.println((n / a) * b);
	}
	
	private static String[] read(int len) {
		List<String> strList = new ArrayList<>();
		
		try {
			if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			}
			
			for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			}
		} catch (IOException e) {
		}
		
		return strList.toArray(new String[0]);
	}
	
	private static void close() {
		try {
			if (br != null) {
				br.close();
			}
		} catch (IOException e) {
		}
	}
} public class Main {
	private static BufferedReader br = null;
	
	public static void main(String[] args) {
		String[] strs = read(1)[0].split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int n = Integer.parseInt(strs[2]);

		System.out.println((n / a) * b);
	}
	
	private static String[] read(int len) {
		List<String> strList = new ArrayList<>();
		
		try {
			if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			}
			
			for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			}
		} catch (IOException e) {
		}
		
		return strList.toArray(new String[0]);
	}
	
	private static void close() {
		try {
			if (br != null) {
				br.close();
			}
		} catch (IOException e) {
		}
	}
} Main
import java.io.*;
import java.util.*;
import java.util.stream.*;

public class Main {
	private static BufferedReader br = null;
	
	public static void main(String[] args) {
		String[] strs = read(1)[0].split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int n = Integer.parseInt(strs[2]);

		System.out.println((n / a) * b);
	}
	
	private static String[] read(int len) {
		List<String> strList = new ArrayList<>();
		
		try {
			if (br == null) {
				br = new BufferedReader(new InputStreamReader(System.in));
			}
			
			for (int i = 0; i < len; i++) {
				strList.add(br.readLine());
			}
		} catch (IOException e) {
		}
		
		return strList.toArray(new String[0]);
	}
	
	private static void close() {
		try {
			if (br != null) {
				br.close();
			}
		} catch (IOException e) {
		}
	}
}
