#include <stdio.h>

int main() {
    int a, b, c, d;
    // 读取输入
    scanf("%d %d %d %d", &a, &b, &c, &d);
    
    // 转换为分钟数
    int start_minutes = a * 60 + b;
    int end_minutes = c * 60 + d;
    
    // 计算总分钟差
    int total_minutes = end_minutes - start_minutes;
    
    // 转换为小时和分钟
    int hours = total_minutes / 60;
    int minutes = total_minutes % 60;
    
    // 输出结果
    printf("%d %d\n", hours, minutes);
    
    return 0;
}