Sum Check Problem

Given three positive integers \(A\), \(B\), and \(C\), check if their sum is less than or equal to \(21\). If it is, output \(1\); otherwise, output \(0\).

inputFormat

The input consists of three positive integers \(A\), \(B\), and \(C\) separated by spaces.

outputFormat

Output \(1\) if \(A+B+C \leq 21\), otherwise output \(0\).

sample

1 2 3

1