Bài 1:$\\$

s = input()

print(''.join([i for i in s if i.isdigit()]))

 $\\$$\\$

Bài 2:

import sys

sys.stdin = open('CLOCK.INP')

sys.stdout = open('CLOCK.out','w')

m, n = map(int, input().split())

print((m + n) % 60)

1.

for i in input():
    if i.isdigit():
        print(i,end='')

2.

import sys
sys.stdin=open('CLOCK.inp')
sys.stdout=open('CLOCK.out','w')
m,n=map(int,input().split())
print((m+n)%60)