#/***********************************************************
#repdec.c -- 小数の循環節
#***********************************************************/

N = 1000
BASE = 10

a = []; p =[]

for i in 0...N; p[i] = 0; end
begin 
    printf("分母 n = ");  n = gets.to_i
    if (n > N); printf("%u 以下にしてください.\n", N); end
end while (n > N)
printf("分子 m = ");  m = gets.to_i
a[0] = m / n;  m %= n;  k = 0
begin 
    p[m] = (k += 1)
    m *= BASE;  a[k] = m / n;  m %= n
end while (p[m] == 0)
printf("%u.", a[0])
for i in 1...p[m]; printf("%u", a[i]); end
if (p[m] < k || a[k] != 0) 
    printf("{")
    for i in p[m]..k; printf("%u", a[i]); end
    printf("}")
end
printf("\n")

exit 0