0_0_35625792_29636.cpp: In function 'int main()':
0_0_35625792_29636.cpp:8:26: error: 'scanf' was not declared in this scope
while(scanf("%d%d",&a,&b)!=EOF) {
^
0_0_35625792_29636.cpp:8:29: error: 'EOF' was not declared in this scope
while(scanf("%d%d",&a,&b)!=EOF) {
^
0_0_35625792_29636.cpp:11:19: error: 'printf' was not declared in this scope
printf("%d\n",sum);
^
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