Nature Language: convertToLowerCase:Takes a string as an agrument and converts all uppercase characters to lowercase using its ASCII value.
  
CPP: int convertToLowercase(char *convertString){\n\tint i;\n\tint len;\n\n\tlen = strlen(convertString);\n\n\tfor (i=0; i<len; i++){\n\t\tconvertString[i] = tolower(convertString[i]);\n\t}\n\n\treturn 0;\n}
  
Fortran: SUBROUTINE convertToLowerCase(string)\n\tcharacter (len = *), intent(inout) :: string\n\tinteger :: i, length\n\n\t!Find length of string.\n\tlength = LEN(string)\n\t\n\t!Loop through each character of string.\n\tDO i = 1, length\n\t\t!If character between A and Z...\n\t\tIF((string(i:i) >= 'A') .AND. (string(i:i)) <= 'Z') THEN\n\t\t\t!Make character lowercase\n\t\t\tstring(i:i) = ACHAR(IACHAR(string(i:i)) + 32)\n\t\tEND IF\n\tEND DO\n\nEND SUBROUTINE convertToLowerCase
  