6 6
 1 4
 4 4
 3 3
 6 4
 6 3
 5 4
 5 6
 3 4
 1 3
 3 2
 5 5
 1 1
 2 1
 3 1
 3 5
 1 6
 6 5
 2 3
 4 3
 2 2
 3 6
 1 2
 6 1
 2 5
 4 5
 1 5
 6 2
 4 6
 5 1
 4 1
 5 2
 2 4
 2 6
 5 3

1/6
 1/2
 1/2
 2/3
 1/6
 1/6
 1/3
 1/6
 1/2
 2/3
 2/3
 1/3
 1/1
 5/6
 2/3
 1/3
 1/6
 1/6
 2/3
 1/2
 5/6
 1/6
 5/6
 1/6
 1/3
 1/3
 1/3
 1/6
 1/6
 1/3
 1/2
 1/3
 1/2
 1/6
 1/3

def sr(ch):
    ch1=ch+' '
    l=[]
    p=''
    for i in ch1:
        if i!=' ':
            p=p+i
        else:
            l.append(int(p))
            p=''
    return l


def pgcd(x,y):
    if y==0:
        return x
    else:
        r=x%y
        return pgcd(y,r)
ch=str(input())
l=sr(ch)
x=l[0]
y=l[1]
z=max(x,y)
def prob(x,y):
    ch='/'
    return str(int(x/pgcd(x,y)))+ch+str(int(y/pgcd(x,y)))
print(prob(6-z+1,6))