0_0_37246961_28567.cpp: In function 'int main()':
0_0_37246961_28567.cpp:4:31: error: 'scanf' was not declared in this scope
while(scanf("%d%d", &n, &m), n+m)
^
0_0_37246961_28567.cpp:7:25: error: 'printf' was not declared in this scope
printf("%d\n", n);
^
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