11541.cpp

#include <bits/stdc++.h>

int main() {
    char a[201], b[201];
    long long n;
    int i, t, j, l, k, m;
    scanf("%d", &t);
    getchar();
    for (k = 1; k <= t; k++) {
        gets(a);
        l = strlen(a);
        j = 0;
        n = 0;
        printf("Case %d: ", k);
        for (i = 0; i < l; i++) {
            if (a[i] >= 'A' && a[i] <= 'Z') {
                b[j] = a[i];
                j++;
            } else if (a[i] >= '0' && a[i] <= '9') {
                n = (n * 10) + a[i] - 48;
            }
            if ((a[i] >= '0' && a[i] <= '9' && a[i + 1] >= 'A' && a[i + 1] <= 'Z') ||
                (a[i] >= '0' && a[i] <= '9' && a[i + 1] == '\0')) {
                b[j] = '\0';
                for (m = 0; m < n; m++) {
                    printf("%s", b);
                }
                j = 0;
                n = 0;
            }
        }
        printf("\n");
    }
    return 0;
}