#ifndef SHARED_H
#define SHARED_H

#define READ_EXACT(t, out) do {                                     \
            if (scanf((t), &(out)) == 1) break;                     \
            printf("Incorrect input for " #out ", try again: ");    \
            while (getchar() != '\n');                              \
        }                                                           \
        while (1)                                                   \

#endif