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Output string using Macro

#include <stdio.h> #define output(j) printf("%d %d\n", j ## 1, j ## 2) int main(void) { int count1, count2; int j1, j2; count1 = 10; count2 = 20; j1 = 99; j2 = -10; output(count); output(j); return 0; }