27 lines
441 B
C
27 lines
441 B
C
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#include <stdio.h>
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#include <string.h>
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int main() {
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int n,i;
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scanf("%d", &n);
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getchar();
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int count = 0;
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for (i = 0; i < n; i++) {
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char operation[4];
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scanf("%s", operation);
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if (strcmp(operation, "X++") == 0 || strcmp(operation, "++X") == 0) {
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count += 1;
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} else if (strcmp(operation, "X--") == 0 || strcmp(operation, "--X") == 0) {
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count -= 1;
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}
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}
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printf("%d\n", count);
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return 0;
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}
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