Submission #1922768

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Source Code Expand

import sys

def solve(a, b, s):
    for i in range(len(s)):
        if i == a:
            if s[i] != "-":
                return 0
        else:
            if "0" <= s[i] <= "9":
                pass
            else:
                return 0
    return 1

a, b = [int(x) for x in sys.stdin.readline().strip().split()]
s = sys.stdin.readline().strip()

if solve(a, b, s):
    print("Yes")
else:
    print("No")

Submission Info

Judge Result