printf("Hello, World!\n");
for(i=0; i<500; i++) {
trace_mark(ust, bar, "str %d", i);
trace_mark(ust, bar2, "number1 %d number2 %d", (int)53, (int)9800);
printf("Hello, World!\n");
for(i=0; i<500; i++) {
trace_mark(ust, bar, "str %d", i);
trace_mark(ust, bar2, "number1 %d number2 %d", (int)53, (int)9800);