If you don't have a plunger, the "soak" method can lubricate the pipe and soften the paper.
If the water level is rising dangerously, lift the tank lid and push down the flapper (the rubber valve at the bottom) or turn off the shut-off valve behind the toilet. toilet blocked with paper
Before attempting any repairs, take these steps to avoid a mess: If you don't have a plunger, the "soak"