#include <stdio.h>
void kakunin1(int a) {
}
void kakunin2(int a) {
kakunin1(a);
}
void kakunin3(int a) {
kakunin2(a);
}
int main(void) {
int a;
a = 0;
kakunin3(a);
a = 40;
kakunin3(a);
a = 100;
kakunin3(a);
return 0;
}
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