kompilacja:
strcthck.c:179: warning: return-type defaults to `int'
uruchomienie:
n1: 4, "This"
n2: 2, "is"
n3: 1, "a"
n4: 5, "test."
n4a: 7, "program"
n1: 0x8049c78
n2: 0x8049c88
n3: 0x8049c98
n4: 0x8049cb8
n4a: 0x8049cd0
t1: 0x8049ce8
t2: 0x8049d20
