String

include <bits/stdc++.h>

using namespace std;

int main () { //MW OWN CODE Eagleofcode int h1, h2, m1, m2, s1, s2, h3, m3, s3, vv;

char c1, c2, c3, c4;

cin >> h1 >> c1 >> m1 >> c2 >> s1; cin >> h2 >> c2 >> m2 >> c3 >> s2;

vv = ((h2 * 3600 + m2 * 60 + s2) - (h1 * 3600 + m1 * 60 + s1));

h3 = vv / 3600;

m3 = vv % 3600 / 60;

s3 = vv % 60;

cout << setw (2) << setfill ('0') << h3 << c1 << setw (2) << setfill ('0') << m3 << c2 << setw (2) << setfill ('0') << s3;

}

//70%