#!/usr/bin/python3

n, k, p = [int(x) for x in input().split()]

s1 = (n - k + 1)*100 + p*(3 + 3 + n + 1)
s2 = (1 + n - k + 1)*100 + (100 - p)*(3 + 3 + n + 1)
s3 = 100*(3 + n + 1)
# print(s1, s2, s3)

if s1 == min(s1, s2, s3):
    print("continue")
elif s2 == min(s1, s2, s3):
    print("backspace")
else:
    print("restart")